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arXiv 2009.12962math.AP
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一个包含三个分数Laplacian算子的非局部耦合模型

A non-local coupling model involving three fractional laplacians

Alejandro Garriz, Liviu Ignat

摘要:

在这篇文章中,我们研究了一个非局部扩散问题,涉及三个不同的分数拉普拉斯算子作用在两个区域。每个域都有一个相关的算子来控制其上的扩散,第三个算子充当两者之间的耦合机制。所提出的模型是一个非局部能量泛函的梯度流。在文章的第一部分,我们提供的结果,了解的存在性和质量守恒。第二部分包括关于溶液的Lp衰变的结果。第三部分研究了当两个区域为球及其互补区域时,问题解的渐近性态。外部分数Sobolev和纳什不等式的独立利益也提供了一个附录。

英文摘要:

In this article we study a non-local diffusion problem that involves three different fractional Laplacian operators acting on two domains. Each domain has an associated operator that governs the diffusion on it, and the third operator serves as a coupling mechanism between the two of them. The model proposed is the gradient flow of a non-local energy functional. In the first part of the article we provide results about existence of solutions and the conservation of mass. The second part encompasses results about the Lp decay of the solutions. The third part is devoted to study the asymptotic behavior of the solutions of the problem when the two domains are a ball and its complementary. Exterior fractional Sobolev and Nash inequalities of independent interest are also provided in an appendix.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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